US5165339A - Detachable scraper attachment for a flood bar - Google Patents
Detachable scraper attachment for a flood bar Download PDFInfo
- Publication number
- US5165339A US5165339A US07/581,003 US58100390A US5165339A US 5165339 A US5165339 A US 5165339A US 58100390 A US58100390 A US 58100390A US 5165339 A US5165339 A US 5165339A
- Authority
- US
- United States
- Prior art keywords
- flood bar
- screen
- scraper
- assembly
- edges
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F15/00—Screen printers
- B41F15/14—Details
- B41F15/44—Squeegees or doctors
- B41F15/46—Squeegees or doctors with two or more operative parts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F15/00—Screen printers
- B41F15/14—Details
- B41F15/40—Inking units
- B41F15/42—Inking units comprising squeegees or doctors
Definitions
- the present invention relates to the field of screen printing. More specifically, the present invention relates to a detachable scraper attachment to a flood bar.
- Printed indicia which are applied to T-shirts and other articles of clothing have become very popular in the last decade.
- boutiques which specialize in printing fanciful indicia such as slogans, college names, or sports team names on T-shirts and other clothing, are commonly seen in shopping malls.
- the indicia available at these boutiques can be pre-printed on a substrate and applied with a heated press by operators at these boutiques to articles of clothing purchased by the consumer, or can be screen printed directly on an article of clothing.
- a stencil screen embodying the indicia is placed over the object to be printed.
- Ink of one color is then flooded onto the screen by a flood bar of conventional design.
- the ink is of the type well-known in the industry for screen printing.
- the ink is squeegeed through the screen onto the object leaving ink of the desired color where the interstices in the screen appeared.
- the squeegee is of any type well-known in the art.
- the ink As the ink is flooded onto the screen, and during the print stroke, the ink tends to be forced to the edges of the screen between the ends of the squeegee and flood bar and the screen frame. This results in ink buildup which is not utilized in the printing process and is wasted.
- the operator must periodically scrape up the ink from the edges of the screen and place it in front of the flood bar. At cleanup time, the operator must clean the screen of all ink so that it may be reused.
- the ink deposits along the frame significantly increase the time required for cleanup, particularly if the ink has dried. The operator must use a spatula or putty knife to scrape the ink from the edges and then wash the area with solvents.
- a need has developed for an inexpensive detachable scraper attachment which can be retrofitted to any existing flood bar.
- a need has also developed for a reusable scraper.
- the present invention solves these and other problems.
- the detachable scraper attachment of the present invention comprises a portion adapted to mount on a portion of the flood bar holder, a flange having an upper and lower edge, the lower edge being generally arcuate, the upper edge attached to the channel portion, and means for detachably affixing the scraper attachment to the edges of the flood bar.
- An object of the present invention is to provide a simple and inexpensive detachable apparatus for recovering ink which collects at the edges of a screen during the printing process.
- the present invention allows less ink to be used during the flooding process, thereby also reducing waste.
- the present invention also decreases production time by continuously scraping ink from the edges of the screen, obviating the need for the operator to stop the process to do so manually. It also reduces cleanup time as less ink collects along the margins of the screen, and lessens the chance of injury to the operator who tries to scrape the ink into the path of a moving flood bar.
- FIG. 1 is a perspective view of a typical print station of a printing press showing the flood and squeegee bars with the present invention attached to the flood bar.
- FIG. 2 is a side view of the typical print station of FIG. 1 showing the present invention attached to the flood bar.
- FIG. 3 is a perspective view of the scraper attachment of the present invention.
- FIG. 4 is a rear view of the scraper attachment of the present invention.
- FIG. 5 is a side view of the scraper attachment of the present invention.
- FIG. 6 is a top view of the scraper attachment of the present invention.
- FIG. 7 is a bottom view of the scraper attachment of the present invention.
- FIGS. 1 and 2 disclose a typical print station 10 of a screen printing press.
- a flood bar 12 having opposing outer edges 14 is slidably mounted on a radial arm 16.
- the flood bar 12 is mounted on a flood bar holder 17.
- a squeegee 18 is positioned directly behind the flood bar 12.
- a screen 20 having a frame 21 along its edges is placed at the print station 10 on a bed (not shown) beneath the flood bar 12 and squeegee 18.
- the screen 20 is placed over the object to be printed and the ink flooded by the flood bar 12 on the forward stroke and the ink squeegeed through the screen 20 by the squeegee 18 on the return stroke.
- FIGS. 1 and 2 disclose the scraper 22 of the present invention attached to an edge of the flood bar 12.
- the scraper 22 may be attached to the flood bar using any conventional means but is preferably clamped to the flood bar 12 as shown in FIG. 1.
- the flood bar 12 and squeegee 18 move along the radial arm 16.
- the flood bar 12 deposits ink onto the screen 20 in a conventional manner.
- the squeegee 18 moves along the screen forcing ink into interstices stencilled into the screen 20. While the squeegee 18 passes over the screen 20, ink is forced to outer edges of the screen 20.
- FIGS. 3-7 disclose the preferred embodiment of the scraper 22 of the present invention.
- the scraper 22 preferably, has a generally U-shaped channel portion 24 which is adapted to mount on the upper portion of the flood bar holder 17.
- the scraper 22 also has a flange 26 having an upper edge 28 and a lower edge 30.
- the upper edge 28 is preferably straight and is longitudinally attached to the base of the channel portion 24 such that the flange 26 extends below the channel portion 24.
- the lower edge 30 of the flange 26 is preferably arcuate such that it comprises approximately one quarter of a circle.
- the flange 26 flares from the upper edge 28 to the lower edge 30.
- the affixing means preferably comprises a pair of tabs 34.
- the tabs 34 preferably extend from opposing surfaces of the flange 26.
- the tabs 34 are adapted to fittingly accept an outer edge 14 of the flood bar 12 therebetween.
- the tabs 34 connect the scraper 22 to the flood bar 12.
- the scraper 22 is then preferably clamped to the flood bar 12 at the channel portion 24 to further secure it to the flood bar 12.
- One scraper 22 is attached to each opposing edge or end 14 of the flood bar 12.
- the scrapers 22 attached to the edges 14 of the flood bar 12 preferably extend to edges of the screen 20 and closely adjacent the screen frame 21.
- the arcuate edge 30 of the scraper 22 acts to force ink which was moved to the outside of the screen 20 by the squeegee 18 toward the center of the screen 20. This allows the scrapers 22 to reach the edges of the screen 20 where ink tends to collect and prevents buildup of ink. It also reduces the amount of ink necessary for a print by keeping the ink concentrated in the print area rather than building up along the frame 21.
- the scraper 22 is preferably made of a non-corrosive material such as polyurethane or other inert material. This allows the scraper to be reused for a long period of time and facilitates cleanup by conventional solvents.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Screen Printers (AREA)
Abstract
Description
Claims (10)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/581,003 US5165339A (en) | 1990-09-12 | 1990-09-12 | Detachable scraper attachment for a flood bar |
PCT/US1991/006536 WO1992004189A1 (en) | 1990-09-12 | 1991-09-10 | Detachable scraper attachment for a flood bar |
AU86314/91A AU8631491A (en) | 1990-09-12 | 1991-09-10 | Detachable scraper attachment for a flood bar |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/581,003 US5165339A (en) | 1990-09-12 | 1990-09-12 | Detachable scraper attachment for a flood bar |
Publications (1)
Publication Number | Publication Date |
---|---|
US5165339A true US5165339A (en) | 1992-11-24 |
Family
ID=24323506
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US07/581,003 Expired - Fee Related US5165339A (en) | 1990-09-12 | 1990-09-12 | Detachable scraper attachment for a flood bar |
Country Status (3)
Country | Link |
---|---|
US (1) | US5165339A (en) |
AU (1) | AU8631491A (en) |
WO (1) | WO1992004189A1 (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5392705A (en) * | 1994-03-25 | 1995-02-28 | Precision Screen Machines, Inc. | Flood bar and squeegee for printing apparatus |
US6112657A (en) * | 1999-08-19 | 2000-09-05 | Bill; Ralph J. | Squeegee attachment system for a printing machine |
US6142070A (en) * | 1999-04-08 | 2000-11-07 | M&R Printing Equipment, Inc. | Ink deflector for squeegee on printing machine |
WO2003057493A1 (en) * | 2001-12-28 | 2003-07-17 | Erdmann Thomas G | Stencil wiping blade assembly with solder paste deflector |
US6684769B2 (en) | 2002-04-01 | 2004-02-03 | Best Buy Enterprise Services, Inc. | Sheet cleaner in a multi-station printing machine |
US20090217830A1 (en) * | 2008-02-29 | 2009-09-03 | Reefdale Pty Ltd | Screen printer print carriage |
US9630394B2 (en) | 2012-08-17 | 2017-04-25 | M&R Printing Equipment, Inc. | Squeegee holder |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE69804569T2 (en) * | 1997-11-13 | 2002-10-24 | Koninklijke Philips Electronics N.V., Eindhoven | Automatic screen printing system |
Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2881698A (en) * | 1956-07-19 | 1959-04-14 | Kenn Equipment Co | Screen process printing machine |
US3955501A (en) * | 1974-01-23 | 1976-05-11 | American Screen Printing Equipment Company | Squeegee and flood bar actuator |
US3988986A (en) * | 1972-04-10 | 1976-11-02 | Peter Zimmer | Anti-drooling device for screen-printing machine |
US4080893A (en) * | 1976-10-07 | 1978-03-28 | James A. Black | Ink scoop squeegee assembly |
US4102266A (en) * | 1977-03-18 | 1978-07-25 | James A. Black | Squeegee, ink scoop and flood blade assembly |
US4121519A (en) * | 1977-03-18 | 1978-10-24 | James A. Black | Squeegee and scooping flow coater |
US4216716A (en) * | 1975-09-12 | 1980-08-12 | Johannes Zimmer | Apparatus for squeegee guidance in screen printer |
US4389936A (en) * | 1980-11-18 | 1983-06-28 | Precision Screen Machines, Inc. | Cleaning attachment for screen printer |
US4509455A (en) * | 1983-08-27 | 1985-04-09 | Tokai Shoji Co. Ltd. | Apparatus for applying emulsion onto screen printing plate |
US4819349A (en) * | 1987-02-25 | 1989-04-11 | Donald Mensch | Offal scraper |
US4836356A (en) * | 1987-05-07 | 1989-06-06 | Nippon Tsusho Kabushiki Kaisha | Cleaner for conveyor belt |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3943849A (en) * | 1973-09-13 | 1976-03-16 | Michael Vasilantone | Squeegee with sweep-movement capability |
US4957045A (en) * | 1988-04-16 | 1990-09-18 | Elmar Messerschmitt | Doctor for screen printing |
-
1990
- 1990-09-12 US US07/581,003 patent/US5165339A/en not_active Expired - Fee Related
-
1991
- 1991-09-10 WO PCT/US1991/006536 patent/WO1992004189A1/en unknown
- 1991-09-10 AU AU86314/91A patent/AU8631491A/en not_active Abandoned
Patent Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2881698A (en) * | 1956-07-19 | 1959-04-14 | Kenn Equipment Co | Screen process printing machine |
US3988986A (en) * | 1972-04-10 | 1976-11-02 | Peter Zimmer | Anti-drooling device for screen-printing machine |
US3955501A (en) * | 1974-01-23 | 1976-05-11 | American Screen Printing Equipment Company | Squeegee and flood bar actuator |
US4216716A (en) * | 1975-09-12 | 1980-08-12 | Johannes Zimmer | Apparatus for squeegee guidance in screen printer |
US4080893A (en) * | 1976-10-07 | 1978-03-28 | James A. Black | Ink scoop squeegee assembly |
US4102266A (en) * | 1977-03-18 | 1978-07-25 | James A. Black | Squeegee, ink scoop and flood blade assembly |
US4121519A (en) * | 1977-03-18 | 1978-10-24 | James A. Black | Squeegee and scooping flow coater |
US4389936A (en) * | 1980-11-18 | 1983-06-28 | Precision Screen Machines, Inc. | Cleaning attachment for screen printer |
US4509455A (en) * | 1983-08-27 | 1985-04-09 | Tokai Shoji Co. Ltd. | Apparatus for applying emulsion onto screen printing plate |
US4819349A (en) * | 1987-02-25 | 1989-04-11 | Donald Mensch | Offal scraper |
US4836356A (en) * | 1987-05-07 | 1989-06-06 | Nippon Tsusho Kabushiki Kaisha | Cleaner for conveyor belt |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5392705A (en) * | 1994-03-25 | 1995-02-28 | Precision Screen Machines, Inc. | Flood bar and squeegee for printing apparatus |
US5503067A (en) * | 1994-03-25 | 1996-04-02 | Precision Screen Machines, Inc. | Squeegee for printing apparatus |
US6142070A (en) * | 1999-04-08 | 2000-11-07 | M&R Printing Equipment, Inc. | Ink deflector for squeegee on printing machine |
US6112657A (en) * | 1999-08-19 | 2000-09-05 | Bill; Ralph J. | Squeegee attachment system for a printing machine |
WO2003057493A1 (en) * | 2001-12-28 | 2003-07-17 | Erdmann Thomas G | Stencil wiping blade assembly with solder paste deflector |
US6684769B2 (en) | 2002-04-01 | 2004-02-03 | Best Buy Enterprise Services, Inc. | Sheet cleaner in a multi-station printing machine |
US20040079251A1 (en) * | 2002-04-01 | 2004-04-29 | Bryan Hed | Sheet cleaner in a multi-station printing machine |
US20090217830A1 (en) * | 2008-02-29 | 2009-09-03 | Reefdale Pty Ltd | Screen printer print carriage |
US9630394B2 (en) | 2012-08-17 | 2017-04-25 | M&R Printing Equipment, Inc. | Squeegee holder |
US10272667B2 (en) | 2012-08-17 | 2019-04-30 | M&R Printing Equipment, Inc. | Squeegee holder |
Also Published As
Publication number | Publication date |
---|---|
WO1992004189A1 (en) | 1992-03-19 |
AU8631491A (en) | 1992-03-30 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: M & R PRINTING EQUIPMENT, INC. Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNORS:HOFFMAN, RICHARD;SZYSZKO, ALEKSANDER;REEL/FRAME:005518/0729 Effective date: 19900730 |
|
AS | Assignment |
Owner name: CONTINENTAL BANK N.A., ILLINOIS Free format text: SECURITY INTEREST;ASSIGNOR:M & R PRINTING EQUIPMENT, INC.;REEL/FRAME:006485/0178 Effective date: 19930329 |
|
CC | Certificate of correction | ||
AS | Assignment |
Owner name: MR AQUISITION, INC., ILLINOIS Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:M&R PRINTING EQUIPMENT, INC.;REEL/FRAME:006830/0360 Effective date: 19931219 Owner name: M&R PRINTING EQUIPMENT, INC., ILLINOIS Free format text: RELEASE;ASSIGNOR:CONTINENTAL BANK, N.A.;REEL/FRAME:006826/0531 Effective date: 19931220 |
|
AS | Assignment |
Owner name: NATIONS FINANCIAL CAPITAL CORPORATION, CONNECTICUT Free format text: SECURITY INTEREST;ASSIGNOR:M & R ACQUISITION (TO BE RENAMED M & R PRINTING EQUIPMENT, INC.);REEL/FRAME:006836/0686 Effective date: 19931220 |
|
FPAY | Fee payment |
Year of fee payment: 4 |
|
AS | Assignment |
Owner name: LASALLE NATIONAL BANK, ILLINOIS Free format text: SECURITY INTEREST;ASSIGNOR:M & R PRINTING EQUIPMENT, INC.;REEL/FRAME:008454/0728 Effective date: 19970401 |
|
AS | Assignment |
Owner name: MR ACQUISITION, INC., F/K/A M & R PRINTING EQUIPME Free format text: RELEASE OF SECURITY;ASSIGNOR:NATIONS FINANCIAL CAPITAL CORPORATION;REEL/FRAME:008553/0212 Effective date: 19970609 |
|
AS | Assignment |
Owner name: M & R PRINTING EQUIPMENT, INC. F/K/A MR ACQUISITIO Free format text: AMENDMENT TO CORRECT NAME OF RECEIVING PARTY PER THE RELEASE OF SECURITY ATTACHED HERETO;ASSIGNOR:NATIONS FINANCIAL CAPITAL CORPORATION;REEL/FRAME:008639/0696 Effective date: 19970609 |
|
AS | Assignment |
Owner name: FIRST SOURCE FINANCIAL LLP, AS AGENT, ILLINOIS Free format text: SECURITY INTEREST;ASSIGNOR:M & R PRINTING EQUIPMENT, INC.;REEL/FRAME:009893/0416 Effective date: 19990323 |
|
AS | Assignment |
Owner name: M & R PRINTING EQUIPMENT, INC., ILLINOIS Free format text: RELEASE OF INTELLECTUAL PROPERTY SECURITY AGREEMENT;ASSIGNOR:LASALLE NATIONAL BANK;REEL/FRAME:009935/0601 Effective date: 19990324 |
|
REMI | Maintenance fee reminder mailed | ||
LAPS | Lapse for failure to pay maintenance fees | ||
FP | Expired due to failure to pay maintenance fee |
Effective date: 20001124 |
|
AS | Assignment |
Owner name: M&R PRINTING EQUIPMENT, INC., ILLINOIS Free format text: TERMINATION OF SECURITY INTEREST & RELEASE OF COLLATERAL;ASSIGNOR:FIRST SOURCE FINANCIAL, LLP;REEL/FRAME:013751/0066 Effective date: 20001101 |
|
STCH | Information on status: patent discontinuation |
Free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362 |